2668285

Information

• Patent Grant
• 2668285

• References
• Source

• Patent Number

  2,668,285

• Date Filed

  Not available

• Date Issued

  Tuesday, February 2, 1954
  70 years ago

• CPC

  • G08B9/06 - Means for indicating disagreement between orders given and those carried out

• US Classifications

  • 340 - Communications: electrical
  • 318 - Electricity: motive power systems
  • 346 - Recorders